Heat-regulating apparatus.



No. 884,275. PATENTED APR. 7, 1908. D. H. HAYWOOD. HEAT REGULATING APPARATUS.

I APPLICATION FILED JULY 28, 1906.

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. INVENTOR 4 Q fl j ,JMATTORNEYS WITNESSES:

UNITED' STATES PATENT OFFICE. DANIEL HOWARD HAYWOOD, OF NEW YORK, N. Y., A SSI GNOR 'ro WILLIAM B. WADSWORTH, OF PLAINFIELD, NEW .TER SEY.

H'EAT-REGULATHVG APPARATUS.

To all whom it may concem:

Be it lmown that I, DANIEL HOWARD HAY- wool'), a citizen ofthe United States of America, and resident of the borough of Manhattan, city of New York, county and State of New York, have invented certain new and useful Improvements in vHeat-Regulating Apparatus, of which the following is a specification, reference being had to the accompafiying drawings, forming a part thereof. y invention relates to improvements in heat regulating apparatus, and particularly to improvements in pipe connections for heat regulating ap aratus operated by pneumatic pressure. 11 this form of apparatus, the main ipe or conduit is usually embedded in the will, while a heat regulating device, usually known as a thermostat, and which includes valve means operated by comressed air delivered throu h the said conuit, is secured to the surface of the wall. It becomes necessary, then, to make a connection between the valve mechanism of the thermostat and the said conduit, and this connection is preferably of such form that it may be readily broken and re-made, when desired, so that the thermostat may be easily removed and replaced at any time. In

. breaking this connection, provision has to be made for shutting off escape of air from the conduit, as otherwise great waste would occur. In order to provide for thus shutting off the air, I have devised automatic means operated by removal of the short piece of pipe usually employed as a part of the cou ler or connection, said means olpened again y the mere putting in place'of t e said pipe connection, whereby the closing of the ipe against passage of air, and the o ening 0 same, 1s automatically carried out the mere insertion and removal of the couphng part which forms the pipe connection.

In order that my invention may be fully understood, I will proceed to describe an embodiment thereof, and will then point out the novel features in claims.

In the drawings-Figure 1 is a view in central longitudinal section through a main conduit, a portion of a thermostat, and a couplin my invention. Fig. 2 is a detail transverse sectional view substantially upon a plane of the line 2-2 of Fig. 1. Fig. 3 is a sect View in central longitudina ion of the Specification of Letters Patent.

Application filed m 28,1906. sma No. 828,221.

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and valve constructed in accordance,

Patented April 7, 1908.

coup and valve with the pipe connection remove Referri to the parts by reference characters, 5 designates a mam pipe or conduit, which is intendedsto connect with the main source of supply.

6 designates a thermostat, in which pneumatic fpressure is employed. A short section 0 piping 7 of small diameter is employed to connect the thermostat 6 with the conduit 5,as is shown, the said pi e 7 being connected with the thermostat 6 y means of a screw cap 8 and rubber washer 9, while the said piece of pipe 7 is connected at its opposite end with the main conduit 5 by means 0 a coupling member 10, to which the pipe 7 is secured by means of a similar cap 11 and an elastic washer 12, the coupling member 10 itself secured to the main pipe or conduit 5 by ,a screw threaded connection 13. Air under pressure normally passes freely the conduit or pi e -5 through the coup 'ng member 10 o 'n'.t e pipe 7 into the thermostat 6. The coupling member 10, however, is provided with a valve in the form of a spherel4, which is loosely contained therein, the diameter of said sphere being (plpeferably but slightly smaller than the inner 'ameter of the member 10. The air coming under pressure through the pipe or conduit 5 tends to carry the sphere or ball 14 u ward, but the upward movement of the said ball is o posed by the lower end of the pipe 7. If t e pipe 7 be removed, the ball 14 will be allowed to come up against the elastic washer 12, whereby escape of air will be cut oif at this point, the said elastic washer actin as 'a valve seat for the ball valve 14. The ower end of the pipe 7 is referably provided with recesses, either at t e extreme end, or near the end, as at 17, said recesses conveniently formed by making a small file cut, or file cuts, at this part, whereby the said ball will not prevent air from passing up through the pipe 7, when the pi e 7 is in place, as shown 1n the drawin s. I? washer 18 may be conveniently emp oyed to prevent the ball from dropping into the pi e, though, if the openin of the pipe is sma enough to prevent the ba 1 from so drop ing down, this washer may be dispensed with. It will be readily seen, then, that immediately the pipe 7 is removed, passage of air from t e coupler 10 will be cut off, while the mere insertion of the pi e, which will act to ush the ball 14' and is preferably of a diameter but slightly smaller than the portion of the socket or cou ler member 10 carrying it, .whereb y the ten ency of the ball to move ,u'pward under the influence of the air is increased, due to the friction of the air rushing along the narrow annular space around the ball. This space may be, of course, varied, and, indeed, it may be considerable, if desired, as by reason of the jet of air from the pi e 5 being directed towards the center of the ball, there will be considerable tendenc of the ball to lift, in any event. Once the ball engages the seat, there will, of course, be the entire ressure of the pi e back of it to hold it in ace, so that no vi ration or the like will be iable to dislodge it, until it is positively removed by the insertion of the pipe 7.

What I claim is:

1. In heat regulating apparatus, the combination with a main p1pe or conduit, a coupling member, a pipe adapted to connect said coupling member with a thermostat, means for securing said pipe to said coupler, comprising a screw cap and an elastlc washer, and a ball contained within said coulpling member arranged to engage said e astic washer when the said pipe is removed, but to 'be disengaged therefrom when the said i eis in osition, said i ehavin 0 enin s riiacent ihe end, wher b y the sai d li all will not prevent air from passing therethrough when the said pipe is in position, substantially as set forth.

2. In heat regulating apparatus, the combination with a main pipe or conduit and a pipe ada ted to connectwith a thermostat, of a coup 'ng member having a screw-threaded connection with said main pipe or conduit, a washer having a reduced orifice arranged over the end of said ipe or conduit and held in place by the sai couplin member, an elastic washer fitted around t e second said pipe, a screw cap for clamping said elastic washer to the said cou ling member and for pressing same around t e pipe upon which it is arranged, a ball valve arranged in said cou ling member and held away from the sai elastic washer when the second said pipe is in place, said pipe having cut awa portions whereby the said ball valve wi not close the same, said ball valve adapted to engage the said elastic washer when the second said pipe is removed, said elastic washer then constitutin a valve seat for the said ball, substantially as setforth.

In witness whereof, I have hereunto set my hand this 19th day of July, 1906.

D. HOWARD HAYWOOD Witnesses:

WILLARD WADSWORTH, LYMAN S. ANDREWS, Jr. 

